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U15 is listed as TXS02324 but the pin out doesnt match the device.
The U14, I dont see connections where the IOs are going into or coming out of. I just wanted to let know that there are internal pullup/pulldown resistors on the SIM IO pins(20k typical) as listed in page 12.
I see that the LDO recommendations(page 15) are also followed with the right caps.
